The idealized representation of one's life, as represented on Instagram, that one wishes others to believe is true. Often supported by exaggerated accounts of social exploits, and generally accompanied by deliberately posed photographs, one's Instagram Veneer often masks a depressingly banal existence.
I got a peek behind Clarinda's Insta-Veneer yesterday. I don't know who the guy or the kids in her pictures are, because there was no trace of them in her tiny apartment on skid row.